Utilization of lipid emulsion therapy in fatal overdose cases: an observational study
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Notice bibliographique
Résumé
OBJECTIVE: Although anecdotal reports suggest that intravenous lipid emulsion (ILE) therapy is effective in a large variety of overdoses, the few controlled human trials published to date yielded disappointing results. Because of potential publication biases, there are few reports concerning the failure of ILE. The primary aim of this study was to identify fatal poisoning cases in the American Association of Poison Control Centers (AAPCC) National Poison Data System (NPDS) in which ILE was administered. METHODS: We obtained an approved release of data from NPDS for years 2010-2015 in which the words "lipid," "ILE," or "fat" appeared in the narrative. Duplicate cases were excluded as were cases in which ILE was not clearly given. Case data were extracted by one author using a predetermined tool, and the information was confirmed by a second author. The timing of ILE administration was characterized into one of four categories: cardiac arrest, first line, last resort, or part of multiple therapies given simultaneously. Response to ILE and adverse events was recorded. RESULTS: Of the 826 cases retrieved from NPDS, 459 met final inclusion criteria. Over 50% of included cases involved either a calcium channel blocker or a beta-adrenergic antagonist. Of note, less than 25% of cases involved a substance for which the Lipid Emulsion Working Group found evidence to support its use. Most often, ILE was given along with multiple therapies (277 cases) or as a last resort (137 cases). In 127 cases, ILE was given during cardiac arrest. ILE was used as first line therapy in 34 cases. Response rates were reported as follows: no response (45%), unknown response (38%), transient/minimal response (7%), ROSC (7%), and immediate worsening (3%). Possible adverse reactions included: ARDS in 39 patients, lipemia causing a delay in laboratory evaluation in three cases, lipemia causing failure of a CRRT filter in two cases, worsening or new onset seizure in two cases, asystole immediately after administration in two cases, and fat embolism in one case. CONCLUSION: Within the Association of Poison Control Centers (AAPCC) National Poison Data System (NPDS), hundreds of cases exist in which ILE therapy was given and death occurred. In many of these cases, ILE was given prior to cardiovascular collapse. Although there is some suggestion of transient improvement in a small subset of cases, adverse effects are also reported. When taken in totality, the number of published cases of failed lipid emulsion therapy outnumbers the published instances of ILE success. Given all the uncertainty generated by case reports, the evaluation of the role and efficacy of ILE therapy in non-local anesthetic poisoning needs robust controlled clinical trials.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle